Geometrical machine.



W. S. EATON.

` GEMETRICM. MACHINE.

Arme/mon. mw ocr. 23. 1913.

Patented Oct. 2, 1917.

s sains-sniff r.

In veu tor:

W. S. EATON.

G'EONIETRICAL MAQHINE. "mamon mio ocr.23. 1913.

1,241,722. Patented oct. 2.1917.

3 SHEETS-*SHEET 2.

udi

Y. Inventor:

/-Q Atty.

W. S. EATON.

GEOMETRICAL MACHINE.

APPLICATION nLEu ocT. 23. w13.

Patented Oct. 2, 1917.

3 SHEETS-SHEET a.

combination of arts as are hereinafter set forth and descri ed, and more particularly pointed out in the claims hereto appended.

Referring to the drawings Y Figure V1 is a side elevation of a machine embodying my invention;

Fig. '2 is a front elevation thereof;

Fig. is a plan view of a portion of the work table and the support for the work plate or sheet;

Fig. 4 is a section on the line 4--4 of Fig. 3;

Fig. 5 is a fragmentar showing of a portion of a design create by means of the controlling plate or cam shown in Fig. 3; and

Fig. 6 is a view of the elementary outline, character or base used in creating this desi fn.

i( Like letters refer to like parts throughout the several views.

In the accompanying drawings, I have shown an embodiment of my invention which includes therein the essential characteristics of a well known type of pantographic engraving machine, which in actual use I have found to give highly satisfactory results.

This machine, however, is merely typical of a large number of machines in which my improvement may be incorporated, and if desired, still other and special designs of machine, adapted for special purposes and uses, may be constructed so as to embody the essential characteristics of my invention.

In the following description, I have referred more particularlyto the specific type of machine shown in the drawings, it being expressly understood, however, that 'it is not my intention to in any way limit myself to any particular mechanism for transmitting movement as defined by the elementary out line, character or base, to the mechanism by which the design is produced.

My invention is especially adapted for use in creating designs for or upon printing plates and plates or matrices for use in developing printing plates, which designs are in the form of continuous or interrupted borders, to be used in connection with the production of safety paper such as is used in bank note or other negotiable papers or instruments.

Heretofore, these border designs have been made in the same manner as the rosette designs, in part by the use of a rose engine or engine lathe, and in part by hand, portions only of the completed design being used and the design being completed by hand. Owing to the well known and well defined operative effect of such engines or lathes, the border designs have not been widely diversified, and theV labor ofV producing same has, as with rosettes, been extensive and has required a high degree of skill'.

By my improved mechanism, I am enabled YVtorsecure complex designs susceptible of wide variations, each of which designs will be complete in itself, and when a plate is made upon a machine, will require no hand finishing.

I am also enabled to incorporate in a design two similar designs, superimposed one upon the other in a manner to change the entire character of the completed design by reason of the variances in the angles and points of intersection of the lines of the superimposed design and of the primary design; or I may superimpose upon a design developed from one elementary outline, character or base, a design developed from a dilferent elementary outline, character or base, so as to obscure the character of the elementa outline, character or base used in either instance, and vary the tone values throughout the design; or I may insert a number or word design in the body of any portion of the scroll work of the design. Furthermore, I am enabled to make a proof design and a completed design in a shorter time than is possible by the old rose engine and hand Work method.

In the form of the invention shown in the accompanying drawings, l indicates a central column carrying a bed plate 2 for a movable table 3, adapted to carry the sheet or plate upon which the design is to be formed. Said column is mounted upon the main table 4 of the machine which may be supported in any desired manner. The table 3 is mounted to have universal movement upon a single plane, so as to place no limitation upon the movement thereof, and thus permit the formation of straight or curved lines in any direction. At 5 I have shown a steadying mechanism to insure absolute accuracy in the movement of the Work supporting table 3. At 6 are ball bearing mounts for the table 3, which insure absolute freedom of movement. Mounted upon the column 1 above the work table 3 is a supporting means, as the oscillatory arm 7, fora work point 8 which in the form of the invention shown is an ordinary graver. The oscillatory work point carrying arm is controlled by the link, treadle andlever mechanisIn 9, this point being adapted to be brought into contact with the work surface through gravity only.

Mounted by means of a universal joint l0 and a vertically adjustable collar l1 upon the column l, is atransmitter l2, one end of which is adapted to have mounted therein a tracing point or stylus 13, and the other end of which is connected by means of a universal joint, not shown, with the work table 3. The collar 11 is slidable upon the column l, and may be adjusted by means of the rack l1a upon said column and a gear in mesh with said rack and carried by the spindle 11h mounted uponfzcollar r11; The universal `joint l() issupported Vby and movable with the collar 11. The setscreiiY 1a carried by the collar 11 is -forfholdingf saidcollar in any adi j usted position.

The adjustability of the collar 11 is-OI the purpose of varying the range K of Amovement of the tableas comparedrwithf-that of the tracing point or stylus.`

The mechanism above described has been heretofore patented to me lby Letters Patent #1,039,714, dated October 1, 1912 and'it is not my intention to claim such mechanism broadly at this time. The elements above referred to constitutek one Vtype ofpanto-` ,graphic engraving machine embodying'fone character or reproducing' means, the; mode'of operation of which contemplates thefexact reproduction of a design or patte-rn upon any desired scale.

By my present invention, however. I do not produce a ixcd design, but vary the operation of the above described mechanism in a` manner whereby a` designis created which as a whole bears absolutely no resemblance to the original design or master.

This mechanism comprises a Vstationary support 14, carried by the main tabled; which support is adapted to haveV immovably secured thereto a plate 15, having indicated thereon as by a sunken line, an elementary outline, cha racter or base, in a position Where it will be Within the operative range of the stylus 13.

The rein'oducineV mechanism Which includes the transmitter 1Q, the members interposed between same and thee Work table 3, and the parts appurtenant thereto, respectively, is adaptedito impart such a movement to the said table 3 as Will cause the Vreproduction of said elementary outline. character or base upon the plate or sheet by the agency of said Work point 8. upon any desired scale, and with exactitude or distortion.y as determined by the adjustment of the transmitting* mechanism.

In order to secure the development of a complex line design of theclaracter contemplated by my inventiomfrom the repeated reproduction of said elementary outline` character or base, it is necessary to secure variance in the relative lposition Vofsthe outline. character or base and the Work plate or sheet upon which the same is being reproduced. by a` movement ot one of these parts relative to the other in at least two directions. in one direction forsecuring spacing of the lines. andE in the-other direction to secure irregularity in the outline of the completed design. i

The extent of successive movements for varying' the outline. may vary to secure curved effects. as shown in the accompanyingdrawingrs. or be made uniform to secure angular eti'ects. Furthermore,l thedegree of anguiarity `may belvared at will, or angular and curved sections may be provided upon the controiling or. cam-plate as Will more tu l l appear hereinafter.

Mounted upon the Worky table 3 Within the operative range of the point 8 is a support for the'fworkfplafte orl sheet, comprising a plurality of su-perposed members, 16 and 17,` mountedlupon suitable bearings, 18 and V19, to have movement along lines perpendicular to eachother to insure simultaneous increment of'said Worlrplate or sheet in tiro directions, independently of the unirersallnovement of the table The bearings-` 18 ere mounted upon the traclrsoriways 5.26 upon the table 3, and the bearings 19 track in ways 21 upon the member 16. I prefer-to use ball bearing mounts as such haveibeenzfound in machines of this type to-bc-less subj ect to Wear, with resultant lost motion, than Wheels. The table 3 has formed therein a channel 22 in which a rack Q3 carried by the Amember 1G has a close sliding tit to preclude Vany possibility ot the displacement offsaid memberin relation to the table 3, excepting under the control of said `-Goperatingwith the rack 23 Vis a gear 24,1 actuated by means ofV the knurled-handle or stem 25. To insure the desired stepby step movement of the work plate or sheet support, I mount upon the shaft of the gear 94. a ratchet wheel Q6. carrying an index plate :26a so that the extent of rotation of said gear may be accurately determined. The graduations upon the plate 26a are all spaced an equal distance apart so that the operator by Watching this index may determine the starti-zig*Y point of the member 16 and the extentof the travel of said plate between succeeding reproductions of the master. This index plate is Imerely to atiord visual means for determining the operative effect of the `gear 24 in much the same manner as the dial upon the permutation lock is used. The index will also indicate whether or not there has been exactitude in this feeding Inovement since oneV of the lines thereon will always extend vertically. Acting` upon the ratchet Q6 isY a spring pressed paw] 27, mounted upon the table 3. This pawl is provided WithaV release gripQS so as to permit its disengagement from said ratchet for the purpose of returning the support to any desired position upon the table 3.

Toiprerent overrunning of the Work plate or sheet support, on to insure the operative engagement of the pawl 27 with the teeth of the ratchet zIprovidea resistance device, acting upon the! work plateor sheet support, 1whichv in the form ot the invention shown comprises a weight 29, connected to the member 16. or rack 23, by means ot the flexible cord 30. passing' over the pulley 31.

The mechanism lost above described is for the purposeV osecuring such a movement of gpl the work plate or sheet support as will insure the spacing of succeeding reproductions of the elementary outline, character or base upon said plate or sheet through a step by step movement of the said support.

The variance in the outline of the de veloped design is secured through a movement or' the member 17 at right angles to that of the member 16, the extent of this movement being determined by a controlling or cam plate 32 having an operative sur face 33 extending in the same direction as the rack 23. The operative surface 33 of the controlling` or cam plate 32 may take any desii-ed form, that in the drawing being an undulatory surface or a series of reverse curves or ogees.

The member 1T is provided with an eX- tended reduced contact 34, adapted to engage the operative surface 33 of the controllino or cam plate 32. The member 17 is normally projected toward the controlling or cam plate 3L?, as by the springs 35 so as to hold the contact 3l in constant engagement With said surface 33. By this construction, the member 17 will have during each step of the lineal traverse thereof, a component of motion, as determined by the controlling or cam plate, at right angles to its line of traverse, although, if desired, the operative surface 33 may be of a contour which will impart such a component of motion to said member 1T only intermittently, there being no such movement during other portions of the lineal traverse of said member 17.

When it is desired to make a simple design, the opposite borders of which will be parallel, a single series of overlapping re productions of the elementary outline, character or base is made, but when it is desired to make a design more complicated or more complex, Without changing the elementary outline, character or base, or by merely supei-imposing the same design upon the design originally made, the operative eect of the reproducing mechanism may be modiied by changing the position of the con trolling or cam plate so as to change the direction of movement of the plate 17 at dit'- terent points of the original design. To secure this result, I mount the controlling or cam plate 32 upon a slide 36, which slide is acted upon by a feed screw 37, mounted. upon the table 3. By this construction, the position of the controlling or cam plate 32 may be changed at will, thus permitting the adjustment of this plate at any stage in the creation of the design in a manner to interrupt the regularity in the design being created.

The controlling or cam plate 32 is detachably mounted upon the slide 36, in any desired manner as by means of screws as shown in Fig. 3 of the accompanying drawings, so that any such plate may be removed and a plate of dissimilar design substituted therefor in order to increase the operative range of the machine or multiply the number of different designs which may be reproduced thereon.

The Work plate or sheet is indicated at 38.

The operation of the herein described machine is substantially as followsc The plate 15, bearing the elementary outline, character or base, such as is indicated in Fig. 6 of the drawings, having been mounted upon the holder 14;, the transmitter 12 is actuated by moving the stylus 13 over said elementary outline, character or base, thus causing similar movement of the Work table 3, the degree of relative movement of the stylus and the work table being controlled by the adjustment of the transmitter mechanism for determining the scale of the reproduction.

Prior to the actuation of the stylus 13, the Work point 8 is brought into engagement with the work plate or sheet 38, mounted upon the member 17.

After the elementary outline, character or b'ase has been completely traced, so as to secure the desired reproduction thereof, the gear 24 is turned to an extent determined by the length of one or more teeth of the ratchet 26, the pavvl 27 preventing a return movement of said gear under the control of the Weight 29, Which Will prevent any overrunning of the gear and insure uniformity in the quantity of lineal traverse of the support for the work plate or sheet. With the lineal movement of the member 16, the member 17 Will, under the springs 35, have a slight movement as defined by the operative surface 33 of the controlling or cam plate 3Q.

When this operative surface is curvilinear, the extent of this right angular movement with succeeding step by step lineal movements of the member 16 Will vary, but Where the rises and falls in said controlling plate are angular, this movement Will be uniform with rises or falls of the same angularity and having the same direction.

In combining in a single controlling or cam plate, rises and falls some of which are curvilinear and others of which are angular, a most eccentric outline to the design created is secured. Inasmuch as the design created by means of a given controlling or cam plate does not have an outline Which conforms with any degree of exactitude to the contour of the said plate, and inasmuch as any movement ot the member 17 at right angles to the line of traverse of the member 16 will not only change the outline, but Will change the tone qualities throughout that portion of the design affected by such movement, it is apparent that a design of great intricacy may be secured through a repetition of the reproduction of the elementary outline, character or base, and the successive step. by step movements of .thesupport for the work plate or sheet after each such reproduction.

After; a design oi` the desired length has been secured, it will be noted that ,thelopposite outlines of the design` are, in their general character, parallel, although not entirely so, ii there bedissimilarity .in the oppositc ends of the elementary outline, character or base.

If it `be desired to make a design more complex, the gearQ-l may beused to lrestore the work` plate orsheet to its formerstarting position, and the col'itrolling. or cam plate may beshifted so as to change the position of the member 17 las eomi'iared with its position when starting to produce the original design.

By repeating the process above referred to, it will be observed that the resultant movements of the member 17 under the control oit' the plate 32 will superimpose upon the original design, a design dissimilar thereto to an extent to change the outline ot the created design and va ry the entire tone qualities throughout the entire design beA cause of thc increased number of lines and the variance in `the angle of intersection of the lines of the spperimposed designs. If desired, in.v superimposing this design, the elementarybutline, character orbase may be changed, the scale of the reproduction may he changed, or the controlling or cam plate ,32 may be changed, or any or all of these changes may be made. .In faetthe range of variances in designs is so great that an infinite number of dissimilar designs may be created, each of. which Will have distinctive properties and none of which will, when completed, disclose the exact contour of the elementary outline` character or base from which it was developed.

The design created will be such that it cannot be reproduced by` any machine ot a type other than that herein shown and, described. 4

In Fig. 5 of the drawings I have shown a portion of a border design produced by a. machine made in accordance with my invention, illustrating the general `effect secured. In this figure, the diiiiculties of hand reproduction, even on an enlarged scale, are apparent.

It desirechfthe supporting `means for the work plate or sheet-having a `compound movement as herein described may,` be Vincorporated in and ,used 4in yconjunction With, the ,machine described` in my applicationfor Letters Patent, Serial No. 749,616, filed February 20, 1913so as to` permit rosettes ,and border sections Ato be alternatelykreprodnced byone and thesalnemachinein acontinuous, design, Vor, to permit the .machineto be lsed either for leaking reacties er1- formas ing borders.

inade, einany other ,ductions 'o rThroughout thisspeciica,tipn, when ,referring to an elementaryoutlme, character Orubasml contianplate a .geometrical figure,

,on an,flncomplete.geometrical figure, as clistnguished from more straight or curved lines the outline oi .which figure taken as a .baseantl repeatedly reproduced, will create, `form or constitutea complete, complex geometrical design.

By the term work plate or sheet, as used/in this specification, l contemplate a metallic plate from which portions of the `metalmare tobeaetually removed, a copper plate coated with resist, to be ren'ioved preparatory to an aeidetching process, proof` glass or paper upon whichA a dcsigirmay ibe nladeto determinethe .suitability ,thereof before making a plate, `matrices from which a .cast is to be substance or matter adapted to receive in any manner whatsoever, a design.

By the terni work point to be included any implement or instrument for marking, cutting or scratching upon any material.

lIt is not my intention to limit myself to the precise details of construction shown in the acconqntnying drawings, it being apparent that such may lie varied Without departing from thespirit and scope of lmy inventlQn- Having described my ,inventiom what l claim as new, and'desire to have protected by Letters Patent, is:-

, 1. A geometrical machine rembodying a snpport for lan elementary outline, character or base,Y a movable support for a Work plate or sheet, a Work pointmeans adapted to ifollowsaid elementary outline, character or base, and cause relative movement of said mora ble support and said work point whereby a rcprodnction otsaid elementary ontline` character or basenniy be described upon a Work plate or sheet, means wherebj.' a step by step traverse in one direction may be imparted to said movable support toh space succt-iedingr reproductions of saidfe/e-` `nientary outline, cliara cter or ba se apa rt, ,and

, ano,rk plateor sheet, @",p'liipalityi-9f meanswhereby sinaiiltalnedits;2 l `diierent directions -may beimp\,

tten

b, o ,t Sp .i Paid `een @el par 0. .essere 2- fleld elleieiacililiililleaw emanate sa@ apart andA create an elongated designhaving anirregular outline.

3. eometrlcal su port oran elementary utline,`eharacter orlbase, a mvable support for a Work plate or sheet, a Work point, means adapted to follow said elementary outline, character or base andoause relative movement of said movable support andsaid Work point whereby a reproductionol said elementary outline, character or base maylbeidescrihed upon a work plate or sheet, tneans whereby a step by step traverse o'nedii'ectipn 'may be imparted to said mcvablesupport to space wheeling repreneurs of ad wilma character or base apartand, a c ntrolling or cam l late having an irregular operative surface adaptedj to impart movement c in another direetion to said-movable support whereby an irregular outline isimpartd to `the created design. y

4. A eometrlcal machine embodying a support or an elementaryoutlie, character or base, a. movable 'supportl or a work p' ate or sheet, a Work polnt, means adapted to follow said elementary outline, character or base and cause relative movement of said movable support` andsaidlvvork point whereby a reproduct'o'n of said elementaryoutline, character orbase maybe described upon l a vert plate. er Sheebmeas' uheeby .a Step by step traverse in one direction maybe imparted to said movable support to s ace succeedingv reproductionsot said out ine, character or base apart, a controlling or cam plate having an irregularoperative surface `adapted to `impart movement in another direction to said movable support whereby anK irre lar `outline is imparted to the created `esign, and means whereby said controlling or cam plate may be removably mounted in the operative krelation to said movable support to permit the substitution of a plate of one contour for one of another contour. y c ,y

5., A leometrical, machine embodying a support or anelementary outline, character or base, a movable Support for a Work plate Aor sheet,` a point, means adaptedto follow' said elementary outline, character or base, rand cause relative movement of said movable support and said Work point wherea ."eproducton of `said elementai-n 4,outlin'e, characteror base maybe describe upon a work plate or sheet, means whereby a step by step `traverse in one idirection maybe impavfed to'said movable support to space succeeding reprod et'ons Yof said outline, character or base apart, a controlling or cam tlatehavins au .irregular emptive audace ladapted `to impart {moveine I k y mueble, Port' whereby en ,.freelat outline 'igl partei-lj` 10- `the .create esi Hand; meas aber .tu ,au fahtolllng or cath plate may be'adtiusted 1 the machine embodying" 'a' said movable sup the operative in another "direction ofsaid Steffi` bystep traverse to superlmpose a' lurality of similar designs, one upon the ot er, in a manner to vary the outline of the completedddee'ign and the tone valuesther'ein."

6. A eometri 1` machine embodying a support or an` elementary outline, character or base, a movable 'supportfor awork plate or sheet, a work pintjmeans adapted to follow said elementary outline,V character or 'base andcause `relative movement of said movable sup ort anydsaid vvrk point Whereby ajre fr'o uctiono'f said elementary out line, cha aeter 'or-,base maybe described upon a ivorl't plateor sheet, means Wherebya step l7.1K geometrical machine embodying a support for an elementar outline, character or base, a Itnovable support for a` Work 'plate br' sheet, a Work point, means adapted f to follow said elementary outline, character or base and cause relative movement of whereby a repro uction ofglsaid elementary outline, character or base may be described upon a VworkV plate or sheet, means whereby a step by step traverse Vin one direction may be imparted to said movable support to space succeeding reproductions of said outline, character or base a uart, a slide mounted adjacent said movawle support, means whereby movement ma be imparted to said l'Slide in parallelism wit the traverse ofsaid support, a controlling or lcam plate mounted "upon said slide and havxigan irregular operative surface adapte tot impart movement in another d'rectibnV to said .movable support whereby an irreular outline is imparted to the created A esign,` and means whereby said controlling ci" cam plate may be removably mounted unon said slide in relation to. said movable sup-- portto* permit Substitution of a plate of one cpntourffor one of another contouif A geoirietricaly machine embbdyingpa supportffor a,an elementary outline, "character orbasej, a movable .support for a Work ,plate or sheet comprising two superrv SQ'CI. mmbersilhpoi'tiea ineens i?? #nig members repetitive? .whereby they are adaptedg to j have f movement ydirections means adapted to follow said'element'ary ort sandfsaid Ivvork point outline, character-or base and impart relative movement toV saidt movable support and said-iWork point asidetermined by said elementary outline, character or base,l Where- Vby1 a reproduction of said elementary `Work plate or sheet comprising two 'superimposed members, supporting means for said members respectively whereby they are adapted to have movement in directions perpendicular to `each other, a Work point, means adapted to follow -said elementary outline, character or base, and impart relative movement to said 'movable support and said Work point," as determined by saidelenientary outline, character orbase, whereby a reproduction of said elementary outline, characteror base may be described upon a Work plate or sheet, means acting upon the lower of said members whereby traverse in one direction-is imparted to both said members, a controlling or cam plate in the operative relationtothe upper of said members and adapted to Ysimultaneous]y impart movement to the upperofsaid membersat right angles to the direction OFtravei'se ofy both members, and meansf'aoting upon the upper of said `members. to'normallv force it toward and yinto Venigalgement with said controlling or cam plate.

10. A geometrical machine embodying a fixed support* for an elementaryy outline, character or base, a movable support for a. work plate or sheet comprising tvvosnpere imposed members, supporting l means for said members respectively wherebythey fare adapted to have movement directions perpendidular fte reach E other, Work point, means adaptedtol'ollovvfsaid elementary outline,` character or base und `impart relative movement to saidzmovable support and said Work point as determined by said `elementarv outline, character or base, whereby a reproduction of said elementary outline` character or base `may ibe described upon a vvork plate or sheet, means acting upon the lower of said members whereby traverse in' one direction is imparted to both fot' said 11 members, a controlling or cam plate init-hel operative relation to the upper of said members and adapted to simultaneously impart movement to the upper of said members at right angles to the direction of traverse of ling; or cam plate may be removably mounted in `the operative relation to the upper of Vsaid mcmbers'to permit the substitution of a plate of one contour for a plate of another contour.

llpAvgeometrical machine embodying a lined support for an elementary outline, character or base, a movable support for a Work plate or sheet comprising tivo superimposed members, supporting means for isaid members respectively whereby they are adapted tol have movement in directions perpendicular to each other, a work point, means adapted to follow said elementary outline. character or base and impart relative movement to said movable support andlsaid Work point as determined by said elementary outline. character or base, whereby la reproduction ot said elementary outline, character or base, Inav be described upon a Work plate or sheet, means acting upon the Ilower of saidV members whereby traverse in fone directionfis imparted to both of said members, Va slide mounted adjacent said rnem'bers, means whereby movement may be Yimparted to said slide in parallelism Withn the movement of both of said members, a controlling or cam plate, mounted upon and movable with said slide, in. operative relation; to the upper of said members land adapted to impart movement to said upperl member in a direction at right angle to, and simultaneously with, the traverse of both of esaid members, and means acting upon said Yuppermember' to normally force it toward fand into engagement with said Vcontrolling@110g-1 orV ram A pl ate.

12. A geometrical machine embodying a Fixed support for an elementary outline, character or base, a movable support for a Work plate or sheet comprising two superimposedfmembers, V'supporting Vmeans -for V-saicl memberslrespectively whereby they are adapted' to-Y-bave movement in directionsper- 'p'endicular toveaclr'other, aVA Work point,

`1fneans` adapted toV follow said elementary outline, character or base and impari-,rela- -tivevmovean'ent' to said movable support `and said# Worlcpoint'as determined by saidV elementary outline, character or base, whereby areproduction of said elementary outline, Vcharacter' =or base may''bedescribed Vupon a ivorkplateV or= sheet,rmeans acting upon'tlae levv'erormid fniemb'ers whereby traverse in one direction is imparted both of said mem- "b'ersg'aslidmounted adjacent Vsaidfme'fmluarsjmeans Wherebv movement may be imparted to said slide in parallelism With the movement of both of said members, a controlling or cam plate, mounted upon and movable with said slide, in operative relation to the upper of said members and adapted to impart movement to said upper member in a direction at right angle to, and simultaneously with, the traverse of both sai d members, means acting upon said upper member to normally force it toward and into engagement with said controlling or cam plate, and means whereby said controlling or cam plate may be removably mounted upon said slide to permit the substitution of a plate of one contour for a plate of another contour.

13. A geometrical machine embodying a fixed support for an elementary outline, character or base, a movable support for a work plate or sheet comprising two superimposed members, supporting means for said members respectively whereby they are adapted to have movement in directions perpendicular to each other, a work point, means adapted to follow said elementary outline, character or base and impartrelative movement to said movable support and said work point as determined by said elementary outline, character or base, whereby a reproduction of said elementary outline, character or base, may be described upon a work plate or sheet, means adapted to impart a step by step traverse to both of said members in one direction, means adapted to simultaneously impart movement to the upper of said members at right angles to the direction of traverse of both members whereby an elongated design having irregular outlines is created and a resistance device acting upon the lower of said members whereby overrunning thereof is prevented.

14. .A geometrical machine embodying a fixed support for an elementary outline, character or base, a movable support for a work plate or sheet comprising two superimposed members, supporting means for said members respectively whereby they are adapted to have movement in directions perpendicular to each other, a work point, means adapted to follow said elementary outline, character or base and impart relative movement to said movable support and said work point as determined by said elementary outline, character or base, whereby a reproduction of said elementary outline, character or base may be described upon a work plate or sheet, a rack carried by the lower of said members, a hand operated gear in mesh therewith whereby a step by step movement may be imparted to said members, a ratchet wheel carried by said gear, a holding pawl coperating with said ratchet wheel, a resistance device acting upon the lower of said members whereby overrunning thereof is prevented, and means adapted to simultaneously impart movement to the upper of said members at right angles to the direction of traverse of both members whereby an elongated design having irregular Voutlines is created.

l5. A geometrical machine embodying therein a fixed support for an elementary outline, character or base, a work table universally movable upon a single plane, a. transmitter adapted to support a stylus in operative relation to said fixed support for a work plate or sheet comprising two superimposed members, supporting means for the lower member whereby it is slidably mounted on said work table, supporting means for the upper member whereby it is slidably mounted upon the lower member to have movement perpendicularly to the direction of movement ot said upper member, means adapted to impart a step by step traverse to both of said members in one direction, and means adapted to simultaneously impart movement to the upper of said members at right angles to the direction of traverse of both members whereby an elongated design having irregular outlines is created.

16. A geometrical machine embodying a supportI for an elementary outline, character or base, a support for a work plate or sheet, a work point, means adapted to follow said elementary outline, character or base and impart relative movement to said support for a Work plate or sheet and said work point as determined by said outline, character or base, whereby a reproduction of said elementary outline. character or base is described upon said work plate or sheet, means adapted to vary the relative positions ot said supports in one direction whereby succeeding reproductions of said outline, character or base are spaced apart and means operative independently of said last named means whereby the relative positions of said supports may be Vsimultaneously varied in a direction perpendicular to the variance secured by said last named means, to impart an irregular outline to the created design.

In witness whereof, I have hereunto aiiixed my signature, in the presence of two subscribing witnesses, this 2d day of October, 1913.

WILLIAM S. EATON` Witnesses: Y

WM. R. REIMANN, E. P. EATON.

Gopies o! this patent may be obtained for va cents each, by addressing the Commissioner ot Patenti.

Washington, D. C. 

